217872729

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{14401}}^1$

素因数の和:14489

約数の個数: 18

約数和(自身を含む): 322590398

約数和(自身を除く): 104717669

約数列:

[1, 3, 9, 41, 123, 369, 1681, 5043, 14401, 15129, 43203, 129609, 590441, 1771323, 5313969, 24208081, 72624243, 217872729]

約数ペア:

[(1, 217872729), (3, 72624243), (9, 24208081), (41, 5313969), (123, 1771323), (369, 590441), (1681, 129609), (5043, 43203), (14401, 15129)]